Copper Wiring

-This update includes the ability to use Concrete as wire insulation. Simply drop it onto a wire to cover it, preventing contact damage and also color-coding your wires. If you break the wire, the insulation block will drop for you to use again. I plan on changing this to a right click system, but just didn't get around to it this time. -Oxidation of copper blocks affects how they work with the system. For an explanation, see my 3.0 update video. -Levers can be used to prevent output from a functional block, even when power is going into it. -Inverted daylight detectors no longer send power through bulbs, but connected Redstone dust (at signal strength 15) can. -Fixed an issue with items being killed by wire contact damage. -Optimized things more